Suitcase



FIG. 1 is a top, front, left perspective view of a suitcase;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left elevation view thereof; and,

FIG. 7 is a right elevation view thereof.

Features depicted in broken lines illustrate portions of the suitcase and form no part of the claimed design. 

CLAIM The ornamental design for a suitcase, as shown and described. 